project_teddy/scripts/AI.gd

extends CharacterBody3D


const SPEED = 3.0
const JUMP_VELOCITY = 4.5
var health = 100

var bullettimer = 50
var bulletshot = false
var bulletrandom
var dead = false

# Get the gravity from the project settings to be synced with RigidBody nodes.
var gravity = ProjectSettings.get_setting("physics/3d/default_gravity")

var player
@export var Bullet = preload("res://objects/AI-Bullet/Bullet.tscn")

func _ready():
	self.visible = false
	$CollisionShape3D.disabled = true

func _physics_process(delta):
	if Global.selfTeddy:
		player = get_node(Global.selfTeddy)
	# Add the gravity.
	if not is_on_floor():
		velocity.y -= gravity * delta
	if $CollisionShape3D/Neck/Teddy/AnimationPlayer.is_playing() == false:
		$CollisionShape3D/Neck/Teddy/AnimationPlayer.play("idle")
	
	if Global.roundInSession:
		self.visible = true
		$CollisionShape3D.disabled = false
		if player and Global.playerAlive and Global.tutorialComplete and not dead:
			if Global.AIHit == true:
				Global.AIHit = false
				var damage = RandomNumberGenerator.new().randi_range(7, 16)
				health -= damage
				spawn_cotton()
			if health <= 0:
				dead_AI()
			if $CollisionShape3D/Neck/Teddy/AnimationPlayer.is_playing():
				var animation = $CollisionShape3D/Neck/Teddy/AnimationPlayer.get_current_animation()
				if animation == "idle":
					$CollisionShape3D/Neck/Teddy/AnimationPlayer.play("walk")
			if $CollisionShape3D/Neck/Teddy/AnimationPlayer.is_playing() == false:
				$CollisionShape3D/Neck/Teddy/AnimationPlayer.play("walk")
			bullettimer = bullettimer - 10 * delta
			if bullettimer < 0 and bulletshot == false:
				bulletshot = true
				var b = Bullet.instantiate()
				owner.add_child(b)
				b.transform = $CollisionShape3D/Neck/BulletGenerator.global_transform
				b.velocity = -b.global_transform.basis.z * b.muzzle_velocity
				$sound.stream = load("res://sounds/pistol_shoot.wav")
				$sound.play()
			elif bulletshot == true:
				bulletshot = false
				bulletrandom = randf_range(1.0, 50.0)
				bullettimer = bulletrandom
			var direction = (player.transform.origin - transform.origin).normalized()
			var xz_velocity = Vector3(direction.x, 0, direction.z) * SPEED
			var y_velocity = velocity.y
			velocity = Vector3(xz_velocity.x, y_velocity, xz_velocity.z)
			$CollisionShape3D.look_at(Vector3(player.global_transform.origin.x, global_transform.origin.y, player.global_transform.origin.z), Vector3(0,1,0))
		move_and_slide()

func dead_AI():
	health = 100
	dead = true
	$CollisionShape3D/Neck/Teddy.visible = false
	$CollisionShape3D.disabled = true
	await get_tree().create_timer(10).timeout
	$CollisionShape3D/Neck/Teddy.visible = true
	$CollisionShape3D.disabled = false
	dead = false

func spawn_cotton():
	$CPUParticles3D.emitting = true
	await get_tree().create_timer(0.5).timeout
	$CPUParticles3D.emitting = false